现在分词：：raftering
过去分词：raftered
过去式：raftered
椽( rafter的名词复数 )；
1. 筏运：longevity :长寿,长命 | rafters :筏运 | beams :束
2. 栋梁椽柱：the flames rose up in a mass. 其炎俱炽 | Ridgepoles, beams, rafters, pillars栋梁椽柱 | exploded with a roar, quivering, splitting, 爆声震裂
